Biogenic Versus Anthropogenic Sources of CO in the United States
| Title: | Biogenic Versus Anthropogenic Sources of CO in the United States |
| Author: |
Hudman, R.C.; Murray, Lee Thomas; Jacob, Daniel J.; Millet, D.B.; Turquety, S.; Wu, S.; Blake, D.R.; Goldstein, A.H.; Holloway, J.; Sachse, G.W.
Note: Order does not necessarily reflect citation order of authors. |
| Citation: | Hudman, R.C., Lee T. Murray, Daniel J. Jacob, D.B. Millet, S. Turquety, S. Wu, D. R. Blake, A. H. Goldstein, J. Holloway, and G. W. Sachse. 2008. Biogenic vs. Anthropogenic sources of CO over the United States. Geophysical Research Letters 35(L04801): 1-5. |
| Full Text & Related Files: |
Jacob_BiogenicAnthropogenic.pdf (1.016Mb; PDF) 
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| Abstract: | Aircraft observations of carbon monoxide (CO) from the ICARTT campaign over the eastern United States in summer 2004 (July 1–August 15), interpreted with a global 3-D model of tropospheric chemistry (GEOS-Chem), show that the national anthropogenic emission inventory from the U.S. Environmental Protection Agency (93 Tg CO y−1) is too high by 60% in summer. Our best estimate of the CO anthropogenic source for the ICARTT period is 6.4 Tg CO, including 4.6 Tg from direct emission and 1.8 Tg CO from oxidation of anthropogenic volatile organic compounds (VOCs). The biogenic CO source for the same period from the oxidation of isoprene and other biogenic VOCs is 8.3 Tg CO, and is independently constrained by ICARTT observations of formaldehyde (HCHO). Anthropogenic emissions of CO in the U.S. have decreased to the point that they are now lower than the biogenic source in summer. |
| Published Version: | doi:10.1029/2007GL032393 |
| Other Sources: | http://acmg.seas.harvard.edu/recentpapers.html#P2008 |
| Terms of Use: | This article is made available under the terms and conditions applicable to Other Posted Material, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#LAA |
| Citable link to this page: | http://nrs.harvard.edu/urn-3:HUL.InstRepos:3554389 |
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